What is near-field communication (NFC) and how do I know if my phone has it?
NFC is the wireless communication technology that enables your FreeStyle Libre 2 sensors to wirelessly transmit data to another device. To check if your phone is compatible with FreeStyle Libre 2 sensors, read the Mobile device and OS compatibility guide here: https://freestyleserver.com/distribution/fxaa20.aspx?product=ifu_art39109_001&version=latest&os=all®ion=all&language=xx_yy